Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 70 · 40 sums

The trick (Anurupyena): Pick the working base (like 40 = 4 × 10 or 300 = 3 × 100) and write each number’s difference from it. Cross-add as in trick 3, then multiply that left part by 4 (or 3, 5…). Right part: multiply the differences — 1 digit for a × 10 base, 2 digits for a × 100 base (carry the extra).

1. 1.57 × 59 =
2. 2.91 × 94 =
3. 3.68 × 68 =
4. 4.406 × 409 =
5. 5.23 × 22 =
6. 6.507 × 508 =
7. 7.18 × 19 =
8. 8.194 × 197 =
9. 9.78 × 79 =
10. 10.79 × 79 =
11. 11.72 × 73 =
12. 12.48 × 46 =
13. 13.409 × 403 =
14. 14.87 × 89 =
15. 15.41 × 42 =
16. 16.58 × 59 =
17. 17.49 × 46 =
18. 18.34 × 34 =
19. 19.44 × 43 =
20. 20.598 × 597 =
21. 21.66 × 68 =
22. 22.94 × 91 =
23. 23.401 × 408 =
24. 24.397 × 393 =
25. 25.302 × 307 =
26. 26.296 × 292 =
27. 27.61 × 61 =
28. 28.22 × 21 =
29. 29.501 × 506 =
30. 30.71 × 73 =
31. 31.493 × 494 =
32. 32.86 × 87 =
33. 33.205 × 202 =
34. 34.196 × 195 =
35. 35.208 × 205 =
36. 36.301 × 302 =
37. 37.32 × 32 =
38. 38.54 × 54 =
39. 39.89 × 87 =
40. 40.202 × 201 =

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